DO not mismatch this intake with your heads and cam
if your cam isnt peaking 5800+ you dont need this and would be better off with a ported cobra or edelbrock.
I have this intake, it works great but as being similar with the edelbrock rpm... if you wouldnt run an rpm on your car, dont run this on yours.
one would be stupid to run this on stock heads purposefully.
I run this intake, it works great. If you are porting the lower anyways, or porting the lower, I woudl pick this up over the edelbrock for pure price. If you want to rev even higher, AFM sells a ported shortened version called the twister which makes good power.